Best E5 Series User Manual page 90

Chapter 5 Specification of Parameters
P11.17 Overexcitation brake
0: Disabled
1: Enabled
When overexcitation brake is enabled in case of stop by Decel, the motor shall transform the
electric energy generated during Decel into heat energy by increasing magnetic flux so as to
attain rapid stop. If this parameter is enabled, the Decel time will be shortened. If
overexcitation brake is disabled, the Decel current of motor will decrease and the Decel time
will be lengthened.
P11.18 Dynamic brake
0: Disabled
1: Enabled
When dynamic brake is enabled, the electric energy generated during Decel shall be
converted into heat energy consumed by brake resistor, so as to attain rapid Decel. This
brake method applies to brake of high-inertia load or the situations that require quick stop. In
such a case, it is necessary to select appropriate dynamic brake resistor and brake unit. The
drives equal and below 15kW are provided with a standard built-in brake unit. Built-in brake
unit is optional for drives 18.5kW~45kW.
Dynamic brake
P11.19
threshold voltage
This parameter takes effect only to the drives with built-in brake unit.
If P11.18 is set to 1: when bus voltage of drive attains the value of P11.19, dynamic brake
shall perform. The energy shall be rapidly consumed through brake resistor. This value is used
to regulate the brake effect of brake unit.
Auto restart when power up
P11.20
again after power loss
Defines the drive status when power up again after power loss during running
0: Disabled
The drive will not run automatically when power is up after power loss.
1: Enabled.
When run command is controlled by keypad or communication, the drive will run
automatically when power is up again after power loss. When run command is controlled by
terminals, the drive will run automatically only if ON signal from run command terminal is
detected
 ATTENTION:
Enable this parameter with caution for safety consideration.
Range: 0~1
Range: 0~1
Range: 650V~750V
Range: 0~1
- 86 -
E5 User Manual
Factory default: 1
Factory default: 0
Factory default:
720V
Factory default: 0